Also, from the FAQ:
# Can I easily uninstall the channel?
# Ofcourse, just remove it as any other ordinary savegame or channel through "data management" in the Wii settings menu.

# Will this remove all traces of the channel?
# No, since there are many logs and other tidbits that remain, created by the Wii software. However, none of these should cause any issues. We will address the problems if and when they come.

Also, from the FAQ:
# Can I easily uninstall the channel?
# Ofcourse, just remove it as any other ordinary savegame or channel through "data management" in the Wii settings menu.

# Will this remove all traces of the channel?
# No, since there are many logs and other tidbits that remain, created by the Wii software. However, none of these should cause any issues. We will address the problems if and when they come.